Battista Benciolini

Battista Benciolini
Università degli Studi di Trento | UNITN · Department of Civil, Environmental and Mechanical Engineering

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32
Publications
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273
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Introduction
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Publications

Publications (32)
Article
The paper describes a unified automatic procedure for the detection of roof planes in gridded height data. The procedure exploits the Blake-Zisserman (BZ) model for segmentation in both 2D and 1D, and aims to detect, to model and to label roof planes. The BZ model relies on the minimization of a functional that depends on first- and second-order de...
Article
In this paper we describe the mathematical model of a kinematic chain and its use in the design and implementation of the algorithms that are necessary for the operation and the identification of an AACMM. The mathematical model is based on the use of quaternions for the representation of rotations. The direct kinematic problem is solved by a quite...
Article
The Helmert transformation is used in different procedures in geodesy, photogrammetry, and in general in geomatics. The assessment of the accuracy of the transformation, and in particular of the transformed coordinates, is often critical. In this paper, a new overall quality index describing the accuracy of the transformed points is proposed. This...
Chapter
Discontinuity detection is of great relevance at different stages of the processing and analysis of geodetic time-series of data. This paper is essentially a review of two possible methods. The first method follows a stochastic approach and exploits the Bayesian theory to compute the posterior distributions of the discontinuity parameters. The epoc...
Article
The Mumford-Shah variational model produces a smooth approximation of the data and detects data discontinuities by solving a minimum problem involving an energy functional. The Blake-Zisserman model permits also the detection of discontinuities in the first derivative of the approximation. This model can result in a quasi piece-wise linear approxim...
Article
Full-text available
Positioning services based on GNSS Permanent Networks (PNs) disseminate the reference frame to users; hence the networks must be adjusted by constraining the ITRF coordinates of some permanent stations (PS), with the satellite orbits and clocks constrained to the values published by the International GNSS Service (IGS). Furthermore, the positioning...
Article
Full-text available
SOMMARIO Una rete di stazioni permanenti deve fornire servizi su tre diverse scale temporali: in tempo reale, il giorno successivo ed entro una settimana dall'acquisizione. L'elaborazione di dati in tempo reale prevede un'ottimizzazione tra tempo di latenza e precisione dei risultati; in questo caso il controllo di qualità può essere eseguito esclu...
Article
The purposes of a positioning service based on a network of permanent stations equipped with GNSS receivers is to provide data and products for land survey, geodetic monitoring and other technical and scientific applications in the covered area. The supply of data and products is often accompained by a consulting service. The design, implementation...
Article
Full-text available
The project ITALGEO ’90 is now approaching its conclusion with the production of a national gravimetric geoid for Italy. This result, which is now next to be completely achieved, involved the work of several persons for several years starting from the first attempt in 1980 until the present stage of production of the final files and plots.
Article
Full-text available
The paper has two main targets: to prove by numerical experiment on simulated data (exact solution a priori known) that the integrated approach gives superior results that can’t be achieved neither by pure (“incorrect”) λ.s. adjustment nor by a λ.s. adjustment of observations corrected by some a priori long wave length gravity model; to find among...
Chapter
A new step of the Italian geoid has been almost completed. The geoid has been computed all over the Italian territory using a new gravity data base and a global model. The computation has been partly repeated using a digital height model too in order to separate the terrain effects; this job is still in development. The data menagement and the comp...
Article
Full-text available
The Istituto di Topografia, Fotogrammetria e Geofisica di Milano (ITM) is in the forefront of "integrated geodesy' applied to any kind of data (geodetic, surveying or photogrammetric). This includes the general scheme of integrated geodesy; the existing computing facilities at the ITM; the geoid computations on the Italian area; joint adjustment te...
Article
Full-text available
A number of simulations of the compensation of the 1st order national geodetic network have been undertaken. These fall within the scope of the 1985 National Doppler Plan (PDN85) activities carried out by the Istituto Geografico Militare (IGMI). The simulations were performed by supplementing classical geodetic measurements with vertex coordinate d...
Conference Paper
Full-text available
A method for gravity anomalies interpolation and prediction using topographic heights is proposed; it is free from any hypothesis on terrain density. Tests with data from a very rough area are reported.
Article
The theory of continuous geodetic networks is a powerful tool to study the error propagation; it works in two different steps. The discrete least square principle must be interpreted as a discrete approximation of a continuous variational principle: this is obtained using the finite element method in reverse way. The solution of the continuous prob...
Article
The geoid undulations can be estimated on a global or a local scale, by using many different geometrical or physical observations. In Italy the first estimates by some collocation technique, have been performed from astrogeodetic, gravimetric, altimetric data, with an accuracy ranging between 50 cm and 80 cm. The results so far obtained and future...

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